Cannot use "control" multiple times if templates are rendered through handlebars files

[iHiD]

Hi everyone,

I'm trying to render a control twice in a template (e.g. http://jsbin.com/ogorab/52/edit). I'm using master of both ember-rails and ember.js.

If I put the template code in <script> tags, it works fine. If I put it in app/assets/templates/name.handlebars files, then it fails on the second render with Cannot call method 'lookup' of undefined.

I've traced the error to line 23968 of https://gist.github.com/4699877 where container is undefined.

I've had this reproduced by others in the IRC channel.

If I can help tracking it down at all, please let me know. Thanks for all your work on Ember and Ember-rails!

[darthdeus]

+1 having the same issue

[ghempton]

Currently, if you use multiple controls in the same template/controller you need to set the controlID property to a different value for each one. E.g.

{{control widget content controlID="one"}}
{{control widget content controlID="two"}}

I hope this is changed in the future to use a guid generated from handlebars.

[iHiD]

Ah, yes. That fixes it. Thanks, @ghempton!

[tchak]

It seems that controlID is set by ember-handlebars-compiler...
https://github.com/emberjs/ember.js/blob/master/packages/ember-handlebars-compiler/lib/main.js#L107

Anyway, I think this issue belongs in ember core not here. Please reopen it in @emberjs/ember.js

[iHiD]

Done. Thanks, @tchak.